West Java is the Most Polluted in Indonesia This Morning (24/2)

West Java has the worst air quality in Indonesia this morning. Based on the Air Pollution Standard Index (ISPU) page of the Ministry of Environment and Forestry (KLHK) on Tuesday (February 24, 2026) at 08.00 WIB, it was revealed that the air quality index in West Java is 120.

According to the KLHK Air Pollution Control Directorate, ISPU is a unitless number used to describe ambient air quality conditions at a specific location and is based on impacts on human health, aesthetic value, and other living beings.

ISPU calculations are based on measurements of seven air pollutant parameters: PM10, PM2.5, NO2, SO2, CO, O3, and HC. Air pollutant parameter measurements are spread across 72 stations in various regions.

(Read: Floods and Extreme Weather, the Most Disasters in Indonesia in 2025)

Based on KLHK Regulation No. 14 of 2020 concerning the Air Pollution Standard Index, ISPU in the 0-50 range indicates good air quality, the 51-100 range means moderate air quality, and the 101-200 range indicates unhealthy air that is harmful to humans, animals, and plants.

Next, very unhealthy air quality in the 201-300 range can increase health risks for sensitive groups. Meanwhile, hazardous air quality in the range above 300 can seriously harm health and requires immediate handling.

Below West Java, South Sumatra ranks second with the worst air quality in Indonesia with an index of 98. Then, in third place is Banten with an air quality index of 95.

This means that no region has hazardous air quality.

Below is the list of 10 provinces with the worst air quality index in Indonesia on Tuesday, February 24, 2026 at 08.00 WIB.

1. West Java: 120

2. South Sumatra: 98

3. Banten: 95

4. Riau: 93

5. Jambi: 88

6. Aceh: 84

7. Lampung: 74

8. South Kalimantan: 69

9. North Sumatra: 68

10. South Sulawesi: 66

(Read: Floods and Extreme Weather, the Most Disasters in Indonesia in 2025)